Carding machine



Aug. 4, 1936. M. PLA ROSELL CARDING MACHINE Filed June 25, 1934,

7h. P/zr Rase// lrvwglvr q Patented Al E- UNITED STATES 2,049,824 CABDING momma Mariano Pia mu, col-mu Barcelona, spam, assignor to Compania Anonima Static, Barcelona, Spain Application June 25,1534, Serial No. 732,300 J In Spain July 1;, 1933 ZClaimt- (Cl- 19 be avoided or at least reduced to a minimum.v

For this purpose means are provided on the carding machine which are completely distinct from those set forth in the above mentioned 15 Spanish patent and which compel the fibres to remain permanently at the tips of the points of the carding oi the main or carding cylinder of the carding machine, thereby avoiding the necessity of cleaning the carding frequently.-

go Thesemeans, according to the, present inventionconsist in providing a carding machine with one'or more plates having'no covering ot any kind which are situated concentric with-the main or carding cylinder and are arranged in plate or plates in-question may be made oi! any materialwhich is a good or a bad conductor of.

electricity.

The said plate or plates, having no covering- 30 of any kind, are adapted to become electrified.

either by the friction of the fibres passing over the main or carding cylinder or by connection with an external source. of electrical energy such as a dynamo, an accumulator, a cell, or 35 any other source, and is or'are situated ata small distance from the carding oi the main or cardingcylinder and at any point on its pe- Y riphery, although in practice it has been found advisable to arrange it in. continuation or the 40 dust bars of the carding machine and at a small distance from the dofllng roller. I

These plates or sheets having no covering of any kind are arranged concentric with the main 1 or carding cylinder and are fixed upon the frame 4t-or body oi the carding machine and may or or bad conductors of electricity.

the present invention,

such a manner that they can be electrified; The

cylinder, the improvement consisting in mountmay not be insulated from the mass of the earth ing machine according to whether they are good If these plates are good conductors of electricity they. may be, connected with an external source oi electrical 5 energy in order to electriiy. them.

In .order to make the improvement forming the subject'o'i this invention fully understood, one embodiment is illustrated by way of example in the single figure oi the accompanying drawms in which: g i

i is the main cylinder or drum; 2 are the dust bars; I is the-curved plate, having no covering, and which is a bad or good conductor of electricity, and in the .latter case is insulated electrically from the carding machine; 4 is the I doiling roller; 8 are thestrippers; 6 is the frame or body or the. carding machine; 1 represents the external source of electrical energy, one or the terminals being coupled to the plate I assuming this plate to be asood conductor-'0! electricity. Having now described my invention, what I claim'as new and desire-to secure by Letters Patent is: 1. In carding machines comprising a carding ingza curved plate oi good electrical conducting material, insulated from the machine and having'no covering of any kind, concentrically with the periphery of the said cylinder. the surface of the said plate being situated so closely to the periphery of the said cylinder that the'said plate will come into frictional contact with the fibres treated by the said cylinder during the operation of the machine, whereby the said fibres 3 uaarmo rm aosmt 5 I 

